One Equity Partners, a private equity firm, has acquired Clayens NP, a polymers and precision metals manufacturer, from Siparex.

Clayens provides processing services for polymers, composites and precision metal parts.

“Clayens’ specialized expertise in producing highly engineered products that meet the most rigorous specifications is highly valued by multinationals operating in various end markets,” said Konstantin Ryzhkov, managing director of One Equity Partners. “This capability has produced a loyal customer base that gives the company a significant advantage in a competitive market.”